304231340440 has 32 divisors (see below), whose sum is σ = 684559512000. Its totient is φ = 121685603584.

The previous prime is 304231340437. The next prime is 304231340443. The reversal of 304231340440 is 44043132403.

It is an interprime number because it is at equal distance from previous prime (304231340437) and next prime (304231340443).

It is a junction number, because it is equal to n+sod(n) for n = 304231340399 and 304231340408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304231340443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525681 + ... + 940639.

It is an arithmetic number, because the mean of its divisors is an integer number (21392484750).

Almost surely, 2^304231340440 is an apocalyptic number.

It is an amenable number.

304231340440 is an abundant number, since it is smaller than the sum of its proper divisors (380328171560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304231340440 is a wasteful number, since it uses less digits than its factorization.

304231340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433299 (or 433295 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 304231340440 its reverse (44043132403), we get a palindrome (348274472843).

The spelling of 304231340440 in words is "three hundred four billion, two hundred thirty-one million, three hundred forty thousand, four hundred forty".